#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
void swap(int* x, int* y)
{
	int t = *x;
	*x = *y;
	*y = t;
}
int main()
{
	int a, b;
	scanf("%d %d", &a, &b);
	swap(&a,&b);
	printf("%d %d", a, b);

	return 0;
}